A riot policeman walks past burning barricades erected by protesters throwing rocks, during clashes in the Kawangware slum of Nairobi, Kenya Thursday, August 10, 2017. International observers on Thursday urged Kenyans to be patient as they awaited final election results following opposition allegations of vote-rigging, but clashes between police and protesters again erupted in Nairobi. (Photo by Ben Curtis/AP Photo)

A supporter of opposition leader Raila Odinga gestures with a machete in Kibera slum in Nairobi, Kenya, August 11, 2017. (Photo by Goran Tomasevic/Reuters)

U.S. soldiers fire a salute during a change of command and change of responsibility ceremony for Deputy Commander of the South Korea-U.S. Combined Force Command at Yongsan Garrison, a U.S. military base, in Seoul, South Korea, Friday, August 11, 2017. (Photo by Lee Jin-man/AP Photo)

Egyptians look at the crash of two trains that collided near the Khorshid station in Egypt's coastal city of Alexandria, Egypt August 11, 2017. (Photo by Osama Nageb/Reuters)

Pupils sit on the World War II remnants of a torpedo at Asan Memorial Park on the island of Guam, a U.S. Pacific Territory, August 11, 2017. (Photo by Erik De Castro/Reuters)

A relief goods storage is seen inside a subway station which is used as a shelter for emergency situation in Seoul, South Korea, August 11, 2017. (Photo by Kim Hong-Ji/Reuters)

Australia' s Dani Stevens competes in the women' s discus throw athletics event at the 2017 IAAF World Championships at the London Stadium in London on August 11, 2017. (Photo by Fabrizio Bensch/Reuters)

Trinidad and Tobago' s Deborah John lies on the track after falling in the women' s 100 m hurdles athletics event at the 2017 IAAF World Championships at the London Stadium in London on August 11, 2017. (Photo by Toby Melville/Reuters)

Australia' s Michelle Jenneke dances as she waits to compete in the women' s 100 m hurdles athletics event at the 2017 IAAF World Championships at the London Stadium in London on August 11, 2017. (Photo by Dylan Martinez/Reuters)

A floral display is pictured inside the Gothic room of Brussels' town hall during “Flowertime” event in Brussels, Belgium August 11, 2017. (Photo by Francois Lenoir/Reuters)

A man pedals a rickshaw as he helps a passenger wade through a waterlogged street during heavy rains in Agartala, India August 11, 2017. (Photo by Jayanta Dey/Reuters)

Passengers in a hot air balloon fly over Bristol city centre during the Bristol International Balloon Fiesta in southwest England, Britain August 11, 2017. (Photo by Hannah McKay/Reuters)

A balloon flies over rooftops in Bristol during the Bristol International Balloon Fiesta in southwest England, Britain August 11, 2017. (Photo by Hannah McKay/Reuters)

Supporters of President Muhammadu Buhari rally at the Unity fountain in support of his administration in Abuja, Nigeria August 11, 2017. (Photo by Afolabi Sotunde/Reuters)

Members of the Syrian Democratic Forces try to locate Islamic State's sniper in Al Senaa, a district of Raqqa, Syria on August 10, 2017. (Photo by Zohra Bensemra/Reuters)

A crown is affixed to a wild goat as it is crowned King Puck and will be held on a platform above the town for three days in Killorglin, Ireland on August 10, 2017. (Photo by Clodagh Kilcoyne/Reuters)

A worker lifts up tiles during a bodybuilding contest for tile factory workers as part of celebrating Indonesia Independence day at Jatiwangi village in Majalengka, Indonesia West Java province, August 11, 2017. Indonesia Independence day is on August 17, 2017. (Photo by Reuters/Beawiharta)

A firefighter aims water on shanties engulfed in flames during a fire in a residential area in Quezon City, Metro Manila, Philippines August 11, 2017. (Photo by Dondi Tawatao/Reuters)

A crane is used to cover the statue of Guan Yu, a Chinese deity, with a cloth in Tuban, about 100 km (60 miles) west of Indonesia's second-biggest city of Surabaya, East Java, Indonesia August 6, 2017 in this photo taken by Antara Foto. (Photo by Aguk Sudarmojo/Reuters/Antara Foto)

Two-year-old Evanston, whose family stated they are from Haiti, watches as a Royal Canadian Mounted Police (RCMP) officer pats down his mother after they crossed the US-Canada border from Champlain, New York into Lacolle, Canada August 11, 2017. (Photo by Christinne Muschi/Reuters)

A ship rides on the tracks of the Buczyniec slipway on the Elblag Canal in Buczyniec, Poland August 10, 2017. (Photo by Kacper Pempel/Reuters)